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Epidemiological evidence shows a concerning rise in youth mental health difficulties over the past three decades. Most evidence, however, comes from countries in Europe or North America, with far less known about changes in other global regions. This study aimed to compare adolescent mental health across two population-based cohorts in the UK, and two population-based cohorts in Pelotas, Brazil.
Methods
Four population-based cohorts with identical mental health measures were compared. In Brazil, these included the 1993 Pelotas Birth Cohort and the 2004 Pelotas Birth Cohort. In the UK, cohorts included the Avon Longitudinal Study of Parents and Children, and the Millennium Cohort Study. Mental health was measured in all cohorts using identical, parent-rated scores from the Strengths and Difficulties Questionnaire (SDQ). This was assessed in both countries over approximately the same time periods, when adolescents were aged 11 (2004 vs 2015 in Brazil, and 2003 vs 2012 in the UK), with follow-up analyses focused on outcomes in later adolescence.
Results
Mental health problems were higher in the UK for adolescents born in the early 2000s compared to those born in the early 1990s. In Pelotas, the opposite was found, whereby problems were lower for adolescents born in the early 2000s compared to those born in the early 1990s. Despite these promising reductions in mental health problems in Pelotas over time, SDQ scores remained higher in Pelotas compared to the UK.
Conclusions
Our study represents the first to compare two population-based cohorts in the UK, and two population-based cohorts in Pelotas, Brazil, to understand how mental health problems have changed over time across the two settings. Our findings provide the most up-to-date insight into population-level rates of youth mental health problems in Pelotas, and shed novel insight into how these have changed over the last two decades in comparison to the UK. In doing so, our study provides a tentative first step towards understanding youth mental health over time at a more global scale, and presents a valuable opportunity to examine putative contributors to differences across time.
A new species of Tereancistrum Kritsky, Thatcher & Kayton, 1980, collected from the gills of Brycon nattereri (Bryconidae) in the Cerrado, in the state of Goiás, Brazil, is described based on morphological and molecular data, based on the mitochondrial cytochrome c oxidase subunit 1 (COI) gene region. Tereancistrum campanum n. sp. is distinguished from all its congeners by the unique ‘bell-shaped’ accessory piece in the male copulatory complex. Molecular analysis revealed that the specimens analyzed formed a distinct group from other Tereancistrum sequences and that the sequences of Tereancistrum kerri showed genetic divergence when compared to T. campanum n. sp., confirming the molecular distinction between the two species. This study also expands the knowledge of parasitic diversity in the Tocantins-Araguaia River Basin and extends the geographical distribution of the genus Tereancistrum. The combination of morphological and genetic data was essential for delimiting this new species, highlighting the importance of integrative approaches in understanding the diversity of monogeneans in freshwater fish in Brazil.
This study evaluated the effects of capsaicin (CAP) supplementation on the intake, nutrient digestibility, ruminal fermentation, nitrogen balance, microbial protein synthesis and health traits of bulls managed on pasture. Eight crossbred (Holstein x Zebu) cattle averaging 313 ± 31 kg of body weight (BW) were arranged in a replicated 4 × 4 Latin square design (one square of four bulls, rumen fistulated with 4-inch silicone cannulas and one square of four non-fistulated bulls), which were kept on Pangola grass pasture (Digitaria decumbens). Each experimental period consisted of 21 days, with 7 days for data collection (no washout between periods). Bulls were randomly assigned to the following treatments: CON (control): concentrate supplementation at 0.5% live weight (BW) and no additive (CAPCIN®), or concentrate supplementation at 0.5% BW in association with CAPCIN® (NutriQuest, Campinas, Brazil) fed at the inclusion rates of 150 (CAP150), 300 (CAP300) and 450 (CAP450) mg/animal/day. Digestibilities of dry matter, organic matter and neutral detergent fibre showed quadratic responses to CAP supplementation. Rumen pH linearly increased with CAP supplementation. The numbers of lymphocytes and eosinophils were linearly increased with CAP supplementation. The use of encapsulated pepper in supplements of crossbred (Holstein x Zebu) bulls managed on D. decumbens pasture up to 450 mg/animal/day improves nutrients digestibility and ruminal fermentation and can positively influence the health status of beef cattle managed under tropical conditions.
Visceral leishmaniasis (VL) is a tropical disease that can be fatal if acute and untreated. Diagnosis is difficult, the treatment is toxic and prophylactic vaccines do not exist. Leishmania parasites express hundreds of proteins and several of them are relevant for the host's immune system. In this context, in the present study, 10 specific T-cell epitopes from 5 parasite proteins, which were identified by antibodies in VL patients’ sera, were selected and used to construct a gene codifying the new chimeric protein called rCHI. The rCHI vaccine was developed and thoroughly evaluated for its potential effectiveness against Leishmania infantum infection. We used monophosphoryl lipid A (MPLA) and polymeric micelles (Mic) as adjuvant and/or delivery system. The results demonstrated that both rCHI/MPLA and rCHI/Mic significantly stimulate an antileishmanial Th1-type cellular response, with higher production of IFN-γ, TNF-α, IL-12 and nitrite in vaccinated animals, and this response was sustained after challenge. In addition, these mice significantly reduced the parasitism in internal organs and increased the production of IgG2a isotype antibodies. In vivo and in vitro toxicity showed that rCHI is safe for the mammalians, and the recombinant protein also induced in vitro lymphoproliferative response and production of Th1-type cytokines by human cells, which were collected from healthy subjects and treated VL patients. These data suggest rCHI plus MPLA or micelles could be considered as a vaccine candidate against VL.
Background: The Cognitive Domains and Functional Assessment Questionnaire (CDFAQ) assess cognitive and functional decline based on the DSM-5 criteria for Neurocognitive Disorders. Its accuracy has been assessed and was translated and validated into English. The informant version (CDFAQ-IV) is a 30-item questionnaire that assesses six cognitive domains with 5 items each: Complex Attention (CA), Executive Functions (EF), Learning and
Memory (LM), Language (L), Perceptual-Motor (PM) and Social Cognition. The development of CDFAQ-IV was based on theDSM-5 cognitive domains, but its factor analysis has not been done yet.
Objectives: To perform a Confirmatory Factor Analysis of the CDFAQ-IV to assess the six-factor cognitive domain model.
Methods: Older adults and their informants were invited to participate in this study. The CDFAQ-IV was applied in 292 older adults’ informants. We used the JASP for a Confirmatory Factor Analysis based on Lavaan R Packages. The confirmatory factor analysis was chosen to manual six-factor model. This study was approved by the ethics committee of UFMG.
Results: Concerning model fitness in the confirmatory factor analysis the X2 was significant (p < .001), standardized root mean square residual (SRMR) was .059 (accepted < .08) and the goodness of fit index (GFI) .984 (accepted > .9). However, the root mean square error of approximation (RMSEA) was marginal to the accepted fitness .066 (accepted < .06) and the comparative fit index CFI was .839 under the accepted cutoff (accepted > .9).
Conclusions: The six-factor model of the showed a good fit for three parameters, marginal for one and negative for the CFI. These results point to a convergence of the questionnaire and factors the DSM-5 cognitive domains. These are still preliminary results and we aim to increase our sample to further assess the confirmatory factor analysis.
Introduction: Throughout the course of the dementia, patients generally need a guardian to protect their rights due to the severity of their mental disabilities. The laws and procedures for guardianship for people with disabilities have been updated in several countries based on the UN Convention on the Rights of Persons with Disabilities promulgated in 2006.
Objectives: To compare the law and procedures for guardianship for people with mental disabilities of twelve countries from six continents.
Methods: Narrative review searching for civil codes/guardianship procedures, date of promulgation, scope of the guardian authority, preferred guardian, duration of the guardianship.
Results: Most countries predominantly promulgated their laws after the year 2000, being half of them updated after 2006. Most countries have two types of guardianship scopes: one concerning financial affairs and the other concerning personal affairs (such as welfare and medical care). Generally, guardianship concerning financial matters is the first to be established. In addition, most countries maintain the ward’s right to vote. In five out of twelve countries, there is an order of preference for choosing the guardian, being the spouses and adult children the preferred guardians. All these countries have the possibility of temporary guardianship. Three countries have a maximum period for guardianship with the possibility of renewal, while all others have indefinite time for guardianship duration. Only France explicitly grants the right to the ward to make medical decisions within guardianship procedures. Brazil’s Civil Code restricts guardianship to financial matters, whereas the Civil Procedure Code requires judges to define the scope of guardianship’s authority for each of the activities of the civil life. Since both codes hold equal authority, judges typically determine the extent of guardianship on a case- by-case basis.
Conclusions: Half of the nations have updated their laws after the promulgation of the UN Convention on the Rights of Persons with Disabilities.
Dementia is expected to increase worldwide and further Discussion concerning the rights of people with dementia is still needed. Although there is no ideal legal framework, the comparison of procedures from different countries may lead to valuable insights for further Discussions andassessments.
Silvopastoral systems (SPSs) constitute a modality of agroforestry systems in which trees or shrubs, pastures and animals mutually grow, interacting with the environment, and providing several ecosystem services. This review aims to comprehensively discuss the ecosystem services provided by SPSs in different countries, highlighting the diverse ways these systems can contribute to human well-being and environmental sustainability, also emphasizing the importance of management strategies, the differences among systems and the main shortcomings and challenges to optimizing ecosystem service delivery from SPSs. The review focused on global studies, mainly those published between 2010 and 2024, directly relevant to the topic. We used Google Scholar, Scopus and Web of Science databases for literature screening. SPSs have demonstrated worldwide potential to enhance human food and forage production, nutrient cycling, soil fertility, biological nitrogen fixation, carbon sequestration, greenhouse gas mitigation, erosion control, microclimate regulation, pollination, control of pests and diseases, biodiversity, residue absorption, water quality, spiritual enrichment, recreation and aesthetic experiences. However, most ecosystem services provided by SPSs depend on climate conditions, soil type, choice of species, system design and management practices to ensure that such benefits are not provided at the cost of other important services. Interaction among components is a major challenge for system management and evaluations. Adopting SPSs has the potential to promote sustainable agriculture. Long-term studies are needed to elucidate the implications of multiple interactions within the system and their impact on ecosystem service delivery. Public policies, including evaluating ecosystem services, should be developed to promote the adoption of SPSs.
Sustained alcohol intake, when combined with incomplete treatment, can result in chronic structural changes in the Central Nervous System, including generalized cortical and cerebellar atrophy, amnesic syndromes like Korsakoff’s syndrome, and white matter disorders such as Central Pontine Myelinolysis and Marchiafava-Bignami syndrome. It is crucial to prevent these complications due to their potential for irreversible and debilitating consequences. For Wernicke-Korsakoff syndrome, early recognition and thiamine administration for prevention are paramount, as it arises from thiamine deficiency due to malnutrition caused by persistent alcohol use. In the case of Central Pontine Myelinolysis, which is caused by abrupt fluctuations in serum osmolality, controlled sodium correction is essential.
Objectives
Through a clinical case and a review of published literature, this study aims to reflect on the importance of preventing neurological injuries associated with chronic alcohol consumption, specifically Wernicke-Korsakoff Syndrome and Central Pontine Myelinolysis.
Methods
A literature review was conducted by searching for articles on PubMed using the terms “Alcohol Use Disorder,” “Wernicke-Korsakoff syndrome,” and “Central pontine myelinolysis.” A clinical case is presented, featuring a 50-year-old patient with alcohol use disorder who developed Wernicke-Korsakoff syndrome and Central Pontine Myelinolysis. Considering this case, we reflect on the primary approaches that could have been beneficial in preventing these complications and propose a straightforward method for doing so.
Results
A 50-year-old patient presented with poor general condition, characterized by low weight, significant loss of strength in the limbs and arms, and incoherent speech with anterograde amnesia and confabulation. This condition had progressed to a point where the patient could no longer walk, perform basic self-care tasks such as bathing, dressing, and eating independently, underscoring the severity of his condition. The diagnoses of Wernicke-Korsakoff syndrome and Central Pontine Myelinolysis were established based on clinical manifestations and the presence of hyperintense lesions observed in the central pons on T2/FLAIR axial MRI scans. This clinical case highlights the importance of proper and precocious prevention of complications in patients with alcohol use disorder. The foremost step in preventing these complications is to treat alcohol dependence effectively, even when faced with patient resistance. It’s vital to remain vigilant about potential complications and implement suitable prophylactic measures.
Conclusions
The devastating effects of complications arising from Alcohol Use Disorder, such as Wernicke-Korsakoff syndrome and Central Pontine Myelinolysis, underscore the importance of enhanced attention that clinicians should provide when approaching these patients at all clinical interactions.
Non-suicidal self-injury among adolescents has grown in recent years, becoming a significant public health issue. The high social and psychological impacts related to it are often characterized by substance abuse and the development of anxiety and depression. Furthermore, emotional dysregulation and heightened reactivity are associated psychological characteristics.
Objectives
The aim of this paper was to do a scoping review, mapping the existing literature on self-harming behaviors among Brazilian adolescents, considering their sociodemographic and clinical characteristics.
Methods
We followed the adapted PRISMA checklist for scoping reviews. We searched eight databases: APA PsycNet, LILACS, MEDLINE, PubMed, Embase, Web of Science, The Cochrane Library, and Scopus. The selection of studies was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement, where three independent researchers examined all titles and abstracts, applying the eligibility criteria. Accordingly, six studies were selected for descriptive analysis due to the variety of study types.
Results
A total of 2,032 youngsters were studied in the age range of 10 to 19 years-old, among over 15,000 reported cases of self-harming behaviors. Females accounted for 51.3% of the cases and had higher scores of impulsivity and loneliness to self-harming behavior (P ≤ 0.05). Alcohol use was evident across both genders but showed higher measures for males in both age groups (10 to 14 and 15 to 19 years, p < 0.001).
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Conclusions
The study pointed to a diversity of clinical and sociodemographic characteristics; however further research is needed on this topic on Brazilian adolescents. In addition, a broader standardization of data is necessary for more specific statistical analyses.
To handle well clinical treatments, it is crucial to know the expectations of patients who seek help. We need to ask ourselves: how do patients interpret subjectively their diagnosis, treatments, and self-care? Medical Psychology brings us theories for this understanding. Grave’s Disease is an autoimmune disorder, a form of hyperthyroidism with a goitre, affecting also the eyes and the skin, as well as emotional manifestations. Weight loss, sometimes psychologically welcome, although due to a disease, can mean a psychoanalytic secondary gain. So, the medicine that leads to clinical improvement can be taken with ambivalence and bad adherence to treatment. It is important to differentiate between disease, a scientific entity explained by the clinical professional, and illness as a patient’s subjective perception of an un-health.
Objectives
To understand psychodynamically the fantasies, desires, and views related to Graves’ Disease as reported by patients in hyperthyroidism but without ophthalmopathy interviewed at an endocrinology-specialized outpatient clinic. (in the EPA-2023, it was presented the qualitative results of a sample in hyperthyroidism, with ophthalmopathy, studied at the same service).
Methods
Clinical-Qualitative Method designed by Turato. Data collected through Semi-Directed Interviews with Open-ended Questions in-Depth; and Field Notes, transcript fully. Treated by the Seven Steps of Clinical-Qualitative Content Analysis of Faria-Schützer, using psychodynamic concepts from Balintian Medical Psychology. Although we have extracted categories that permit us interesting discussions, we intend to close the sample (through the information saturation criterion by Fontanella) when we obtain other categories. The interviewer, a male psychologist, is the first author. The findings are validated by peer-reviewers of the Lab of Clinical Qualitative Research of the State University of Campinas.
Results
Three categories were chosen for this presentation: 1) “An atomic bomb in my life”: How drastic changes of a hormonal disease re-symbolize the patient’s life; 2) “I didn’t think the thyroid did that much”: the disease seen as a metaphor in a psychological blaming language to own disease and to himself as a sick person. 3) “I have so much medicine!”: a mode of referring to treatment that would justify an undisciplined use of medications.
Conclusions
Our findings can help clinical professionals to have a better understanding of some psychological meanings which have sense in the patients’ conscience, often not verbalized clearly in the conversation, and so to handle better the patients and relatives. In this way, it can reduce the patient’s resistance to recommended treatment, as well as encourage the clinical team to construct empathy with them.
Health Psychology is aggregated to clinical studies providing physicians, nurses, and psychotherapists with psychodynamics of sick persons, facilitating interpersonal relationships and greater adherence to treatments. How do people deal with illness and treatment from what they symbolize in experiences of becoming ill? Watch & Wait Protocol for patients with rectal cancer is an active surveillance as an alternative approach in surgical medical management. Patients are followed with physical examinations, endoscopy, and imaging. Observation carried out through periodic examinations aims to avoid surgery stage while rectal cancer is maintained.
Objectives
To interpret emotional meanings attributed by patients, after adhering to the W&W protocol for rectal cancer, to life experiences of watching and waiting for the disease course.
Methods
Clinical-Qualitative Method (Turato. Portuguese Psychos. J, 2000 2(1): 93-108). For data collection, the first author used Semi-Directed Interview with Open-ended Questions In-Depth and Field Notes, after acculturation. Sample closed by information saturation (Fontanella et al. Cad Saude Publica. 2008; 24(1): 17-27). Interviews conducted by the first author, a female psychologist. We employed the Seven Steps of the Clinical-Qualitative Content Analysis (Faria-Schützer et al. Cien Saude Colet. 2021; 26(1): 265-274) to construct categories. Theoretical framework was the Balintian Medical Psychology. Findings were validated by peer reviewers from Lab of Clinical-Qualitative Research.
Results
Sample had 10 patients, 3 female and 7 male, from 52 to 77 years. Interviews carried out from October 2022 to March 2023. We constructed 03 categories: 1) Fate out of hands - “I get sick just coming in here.” There is an apprehension experienced in each medical evaluation to check the clinical condition because the symbol of waiting is not having the own destiny in the hands. 2) Psychic defence - “Sometimes I even thought if I had to live on a grant for the rest of my life or die!” Imagining the worst is a psychic defence because if this probability occurs, the mind has already begun its elaboration. 3) Life upside down - “I was going to have the surgery, use a bag, my life was going to be upside down.” Anxiety generated by waiting is a mental disorganizing.
Conclusions
Attitudes of observing and waiting carry different symbolisms to those who work with scientific thinking and who experience the observation of their own disease and the wait for what conduct they will receive. Observing oneself in illness requires acceleration of changes in ego identity. Waiting in front of illness asks the ego to think the worst. It is not a volitional choice. Preparing for the worst is a defensive necessity in the emotional sphere to avoid surprises that take to mental rupture.
Involuntary admission rates differ between gender across various countries. In several European Union countries, men are more frequently involuntarily admitted, while an opposite trend, associating women with involuntary care, has been observed in countries like Switzerland, Brazil, and China.
Objectives
Considering the contradictory evidence about gender and involuntary care in the literature, we aim to analyze the gender patterns of involuntary care in Centro Hospitalar Médio Tejo’s Psychiatric Acute Unit, exploring the gender differences in diagnosis among involuntary patients.
Methods
We stored and analyzed the data using Microsoft Excel and IBM SPSS Statistics. We studied psychiatry admissions at Centro Hospitalar Médio Tejo, Portugal over 2 years. The Acute Psychiatric Unit, located within a general hospital, has 24 beds, and offers acute mental healthcare services to adults aged 18 and above, serving a coverage area of approximately 251,000 residents. As part of our data collection process for all admissions to the Acute Psychiatry Unit, we recorded information such as gender, age, diagnosis at discharge, treatment type (voluntary or involuntary), and length of stay.
Results
From January 1, 2021, to December 31, 2022, there were 686 psychiatry admissions at Centro Hospitalar Médio Tejo, of which 125 (18,2%) were involuntary. The admission rates were approximately 136.6 per 100,000 people annually, with 24.9 being involuntary admissions per 100,000 people annually. In our analysis of involuntary admissions, women had a lower rate of such admissions, making up 6.4%, while men had a higher rate at 11.8%. No other gender identity was mentioned. Schizophrenia-related disorders were the primary cause for involuntary admissions for both genders, with 67.9% for men and 50% for women. Mood disorders were the second most common reason for involuntary admission, accounting for around 40.9% of cases for women and a significantly lower 16% for men. Involuntarily hospitalized patients exhibited longer lengths of stay independently of the gender. Men hospitalized involuntarily tended to be younger, whereas for women, involuntary hospitalizations were associated with older ages.
Conclusions
In conclusion, our study reveals gender differences in psychiatric involuntary admissions, with more men being involuntarily admitted than women. Schizophrenia group disorders were the most common diagnoses among male and female involuntary patients. Furthermore, all hospitalized women exhibited a higher prevalence of mood disorders, a trend that was more pronounced among those admitted involuntarily. These gender trends match the overall patterns seen in the epidemiology of schizophrenia and mood disorders. Additionally, women with schizophrenia generally exhibit better social functioning than men, which may explain the lower needs of involuntary hospitalization.
Humanistic studies applied to the health-illness clinic go beyond explaining cause-effect relationships among disease phenomena, treatments, and preventions. Qualitative research aims to understand symbolic relationships built in life experiences among the manifestations and the people. How to act in front of a person whose physical appearance and odour can be unpleasant, such as in the HNC - Head Neck Cancer? Or whose life history may have been marked by deviant behaviours and negligence in self-care?
Objectives
To interpret emotional meanings attributed through open interviews conducted with relatives about the domestic care of patients with HNC under clinical treatment.
Methods
Sample composed of family caregivers of patients with HNC, sent sequentially by colleagues from the clinical service who were informed of the research. The study used the Clinical-Qualitative Method (Turato. Portuguese Psychos. J, 2000 2(1): 93-108). Semi-Directed Interview with Open-ended Questions In-Depth and Field Notes was used for data collection. The employ of the Seven Steps of the Clinical-Qualitative Content Analysis (Faria-Schützer et al. Cien Saude Colet. 2021; 26(1): 265-274) has permitted the understanding of the topics. Sample closed with 12 persons according to the information saturation strategy (Fontanella et al. Cad Saude Publica. 2008; 24(1): 17-27), conducted by the first author, a female psychologist. To interpret the empirical material, we use Medical/Health Psychology, the psychodynamics of relationships of the Balintian framework, disease and illness while modes of un-health, psychic defence mechanisms against anguish. Validation by peers from the Lab of Clinical-Qualitative Research Laboratory, at the State University of Campinas.
Results
For this presentation, we listed three categories from the free-floating re-readings: (1) Certain need to recognize the care provided as a handling strategy with effort, putting in this ‘validation’ their relief regarding natural suffering of the care process; (2) Caregiver’s psychological fantasies of omnipotence in the care process, frequently perceiving the reality a phenomenologically and necessarily distorted by the caregiver. (3) Moments of impotence feeling in front of the finitude reality that it knows will arrive.
Conclusions
The family caregivers can present certain emotional defences, such as subtle magical thinking, in which they distort the reality experienced as a management strategy and validation of their care. They act so to alleviate their psychological and existential suffering. Group meetings with family members to talk openly about the difficulties on the psychological management of patients with HNC, coordinated by a psychotherapist, are effective as a space for creativity in daily management at home and a space for catharsis.
Sucrose yield in sugarcane is a complex process regulated by both environmental and endogenous factors. However, the metabolic balance driving vegetative growth and sucrose accumulation remains poorly understood. Herein, we carried out a comprehensive assessment of carbohydrate dynamics throughout the crop cycle in two sugarcane varieties varying in biomass production, evaluating the carbon metabolism in both leaves and stalks. Our data revealed that the decline in photosynthetic rates during sugarcane maturation is associated not only to accumulation of sugars in leaves but also due to stomatal and non-stomatal limitations. We found that metabolic processes in leaves and stalks were intrinsically linked. While IACSP94-2094 had higher stalk sucrose concentration than IACSP95-5000, this latter produced more biomass. Compared to IACSP95-5000, IACSP94-2094 showed higher sucrose phosphate synthase (SPS) activity in leaves and stalks, along with lower soluble acid invertase (SAI) activity in leaves during the maximum growth stage. Interestingly, IACSP94-2094 also exhibited higher stalk SPS activity and lower stalk SAI activity than IACSP95-5000 during maturation. High biomass production by IACSP95-5000 was associated with higher sucrose synthase (SuSy) and SAI activity in leaves and higher SuSy and soluble neutral invertase (SNI) activity in stalks when compared to IACSP94-2094 during the maximum growth. Despite the contrasting strategies, both varieties displayed similar total sucrose yield, a balance between sucrose concentration and biomass production. This phenomenon implies the presence of a compensatory mechanism in sugarcane, with high biomass production compensating low sucrose accumulation and vice versa.
Different fertilization strategies can be adopted to optimize the productive components of an integrated crop–livestock systems. The current research evaluated how the application of P and K to soybean (Glycine max (L.) Merr.) or Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster cv. BRS Piatã associated with nitrogen or without nitrogen in the pasture phase affects the accumulation and chemical composition of forage and animal productivity. The treatments were distributed in randomized blocks with three replications. Four fertilization strategies were tested: (1) conventional fertilization with P and K in the crop phase (CF–N); (2) conventional fertilization with nitrogen in the pasture phase (CF + N); (3) system fertilization with P and K in the pasture phase (SF–N); (4) system fertilization with nitrogen in the pasture phase (SF + N). System fertilization increased forage accumulation from 15 710 to 20 920 kg DM ha/year compared to conventional without nitrogen. Stocking rate (3.1 vs. 2.8 AU/ha; SEM = 0.12) and gain per area (458 vs. 413 kg BW/ha; SEM = 27.9) were higher in the SF–N than CF–N, although the average daily gain was lower (0.754 vs. 0.792 kg LW/day; SEM = 0.071). N application in the pasture phase, both, conventional and system fertilization resulted in higher crude protein, stocking rate and gain per area. Applying nitrogen and relocate P and K from crop to pasture phase increase animal productivity and improve forage chemical composition in integrated crop–livestock system.
The objective was to evaluate energy partitioning and predict the relationship between metabolizable energy (ME) and digestible energy (DE) in hair sheep fed tropical diets at three feeding levels (maintenance, intermediate and high). To evaluate the energy partition, a database with 114 records (54 non-castrated males and 60 females) from comparative slaughter studies was used. To estimate the ratio ME:DE, 207 observations (74 non-castrated males and 133 females) were used from six studies in a multi-study approach, two indirect calorimetry studies (n = 93) and four comparative slaughter (n = 114), using a mixed model and study as random effect. A simple linear regression equation of the ME against DE was fitted to predict the efficiency of DE to ME conversion. Gas losses were greatest (P < 0.05) for animals fed at maintenance level (7.92% of gross energy intake). The variations of energy losses in the urine were 2.64, 2.06 and 2.08%; faecal losses were 34.37, 37.80 and 36.91% for maintenance, intermediary and high level of feeding, respectively. The regression analysis suggested a strong linear relationship between ME and DE, generating the model ME (MJ/day) = −0.1559 (±0.07525) + 0.8503 (±0.005864) × DE (MJ/day). This study highlights the importance of the relationship ME:DE. Equation/factor 0.85 presented herein is alternative that could be used for the calculation of ME from DE in feedlot diets tropical. In conclusion, we suggest that for hair sheep fed tropical diets the conversion factor 0.85 is more adequate to predict ME from DE.
In tropical regions, water stress is one of the main causes of the reduction in forage productivity, and irrigation strategies can mitigate the problem, especially for highly productive species. The objective of this study was to evaluate the effects of irrigation, genotype and plant size on productive responses and water use efficiency (WUE) of elephant grass (Cenchrus purpureus [Schumach.] Morrone), in the rainy and dry season. The experimental design was randomized in blocks, arranged in split plots, the main plots were established based on the use of irrigation and the subplots were the tall-sized genotypes (IRI 381 and Elephant B) and dwarfs (Taiwan A-146 2.37 and Mott). The genotypes were evaluated for two years and harvested every 60 days. Water use efficiency, total forage accumulation per year and harvest, forage accumulation rate and forage density were evaluated. There was a significant difference between the genotypes in terms of total forage accumulated (P < 0.05). The most productive genotype was IRI 381, which showed the greatest total forage accumulation (42 168 kg of DM/ha in two years) in the irrigated plots. During the rainy seasons, IRI 381 stood out in terms of forage accumulated (24 667 kg of DM/ha). Irrigation favoured increases in forage accumulation around 60%, in both years of evaluation. Irrigation and plant size influenced the productivity and WUE of elephant grass harvested in 60-day intervals. Tall genotypes and Taiwan A-146 2.37 (dwarf size) stood out in most of the productive traits analysed, while Mott was highlighted by its forage density.
Home confinement was implemented worldwide as a response to the covid-19 pandemic. Therefore, almost all school-age children started to receive home-schooling from the beginning of 2020, it was necessary due to the length of the lockdowns. Being quarantined at home imposed an increase in psychological burden and the situation was aggravated because of school closure, lack of outdoor activity, aberrant dietary and sleeping habits, disrupting children’s usual lifestyle and promoting monotony, distress, impatience, annoyance, and varied neuropsychiatric manifestations.
Objectives
This study aims to understand the correlation between quarantine and psychosocial effects on school-age children.
Methods
An integrative literature review was developed in 3 steps: Development of the research question, search for scientific articles in the Pubmed database, and critical analysis of included articles. The search was conducted in September 2022, and articles between 2019 and 2022 were selected, for a total of 510 articles, of which 28 were used.
Results
The confinement caused by the coronavirus imposed an immediate and lingering psychosocial impact on children due to drastic changes in their physical activity, lifestyle, and mental excursions. Even a short-term shutdown of educational institutions and home confinement is indeed troublesome and anticipated to have detrimental effects on children’s physical and mental health and shatter the sense of normalcy that schools used to provide. Another important factor to note is that some children`s had to be detached from their parents due to several factors, this juncture caused ever-lasting psychiatric consequences including post-traumatic stress disorder, anxiety, psychosis, depression, delinquency, and even suicidal tendency.
Conclusions
Thus, frontline physicians must be aware of the psychosocial needs of the quarantined children. Hospital authorities need to make arrangements for children to communicate with parents via audiovisual devices. Government should invest in operational strategies to provide mental healthcare for the quarantined children.